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STM32使用DAC输出正弦波
使用STM32F103的DAC模块输出一定频率的正弦波，频率和每个波形的点数均可修改！
- 2020-12-11下载
- 积分：1
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3GPP MIMO 官方信道建模文档和源代码（非常详细）
MIMO 官方信道建模文档和源代码 ，可以直接调用，非常宝贵的学习资源！
- 2020-12-05下载
- 积分：1
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stm32的APDS9960颜色识别、舵机、电机
本工程是在一定的硬件基础上实现的，为方便大家参考，模块化编程，里面是一个完整的工程，包括舵机、电机、ADC、软IIC、APDS9960的颜色识别，APDS9960已按照arduino库初始化，如需识别手势请自行参照文档使能手势即可，压缩包内包括APDS9960的中文文档；以上功能建立在SM32F103RB，8MHz的基础上实现；都可以通过修改定义端口实现。
- 2020-12-07下载
- 积分：1
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stm32同步规则转换DMA传输
stm32f103进行同步规则进行转换，其中代码做了比较详细的注释，对于同步规则中的参数进行了实验，欢迎大家指正。
- 2020-12-07下载
- 积分：1
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k-means聚类算法图像分割
运用K-means算法进行图像分割,K-means算法是很典型的基于距离的聚类算法，采用距离作为相似性的评价指标，即认为两个对象的距离越近，其相似度就越大。该算法认为簇是由距离靠近的对象组成的，因此把得到紧凑且独立的簇作为最终目标。k个初始类聚类中心点的选取对聚类结果具有较大的公式公式影响，因为在该算法第一步中是随机的选取任意k个对象作为初始聚类的中心，初始地代表一个簇。该算法在每次迭代中对数据集中剩余的每个对象，根据其与各个簇中心的距离将每个对象重新赋给最近的簇。当考察完所有数据对象后，一次迭代运算完成，新的聚类中心被计算出来。如果在一次迭代前后，J的值没有发生变化，说明算法已
- 2020-12-10下载
- 积分：1
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cloudcompare中英文学习资料
有中文简介，方便入门，还有英文详细资料，以前上传的人要积分太多，
- 2020-11-03下载
- 积分：1
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MPU-6050 六轴传感器数据手册（中文）
MPU-6050 六轴传感器数据手册（中文）T。pvewTop View88昌翼24123122212019CLKIN18 GNDCLKIN 118 GNDNc 217|NcNC 2Nc6NCNc 316NCMPU-6000MPU-6050Nc16 NCNc514NCAUX DA613VDDAUX_DA613VDDmoQB5B召azQFN PackageQFN Package24-pin, 4mm x 4mm xo9mm24-pin, 4mm x 4mm x 0.9mm+2+7.2典型应用GNDCr 10n2巴2222l2巴2凹2CLKINMPU600回而MPU-6050 sAX CLAUX CLGNDClVLOGIC△NDGNDTypical Operating Circuits73所用电容规格器件标签规格数量校准滤波电容(Pm10)C1陶瓷,Ⅹ7R,0.1uF±10%,2VVDD旁路电容(Pin13)C2陶瓷,Ⅹ7R,0.1uF±10%,4∨电荷泵电容(Pin20)C3陶瓷,Ⅹ7R,10UF±10%,50VLOGC旁路电容(Pin8)C4陶瓷,X7R,10uF±10%,4V7.4上电过程建议Power-Up Sequencing1. TVDDR is VDD rise time: Time for vdd to risefrom 10% to 90% of its final valueVDDR2. TVDDR is $100msec3. tvr is VLOGIC rise time: Time forVLOGIC to rise from 10% to 90% of its finalVDDvaltlVR4. TVGR is S3msec90%5. TvG-VDD is the delay from the start of VDDramp to the start of VLOGIC riseVLOGIC10%6. TVLGVDD is 20: VLOGIC amplitude mustalways be sVDD amplitude7. VDD and VLOGIC must be monotonicramps1.VLOG|C振幅必须sVDD振幅2.VDD上升时间(TvDR)为实际值的10%到90%之间3.VDD上升时间(TvDR)≤100ms4.ⅥLOGC上升时间( TVLGR)为实际值的10%到90%之间5. VLOGIO上爪时间(TvcR)≤3ms6. TVG-VDD为从VDD上升沿到LOG|C上升沿的时间7.VDD和ⅥLOGC必须是单调边沿7.5系统结构图CLKINCLKOUTacknowledgSCL FROMMASTER8clock pulse forSTARTacknowledgementconditionAcknowledge on the ic bus通信开始标志(S)发出后,主设备会传送一个7位的Save地址,并且后面跟着一个第8位,称为Read/ Write位。R^W位表小主改备是在接受从改备的数据还是在向其写数据。然后,主设备释放SDA线,等待从设各的应答信号(ACK)。每个字节的传输都要跟随有一个应答位。应答产生时,从设备将SDA线拉低并且在SCL为晑电平时保持低。数据传输总是以停止标志(P)结束,然后释放通信线路。然而,主设备也可以产生重复的开始信号去操作另一台从设备,而不发出结束标志。综上可知,所有的SDA信号变化都要在SCL时钟为低电平时进行,除了廾始和结束标志。SDA91-7891-7START ADDRESS RN ACKDATAACKDATAACK STOPconditionComplete IC Data Transfer如果要写MPU-60X0寄存器,主设备除了发出开始标志(S)和地址位,还要加一个R∧W位,0为写,1为读。在第9个时钟周期(高电平时),MPU-60X0产生应答信号。然后主设备开始传送奇行器地址(RA),接到应答后,开始传送寄存器数据,然后仍然要有应答信号,依次类推。单字节写入时序Master S AD+WRADATASlaveACKACKACK连续写入时序
- 2020-12-05下载
- 积分：1
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关于基于Matlab的Levenberg-Marquardt算法参考
本片是基于Matlab的Levenberg-Marquardt算法参考代码，通过代码，可以加快我们对LM算法求取目标参数的方法掌握，加深对非线性最小二乘法的理解
- 2020-12-09下载
- 积分：1
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频谱仪——安捷伦N9010A操作手册
频谱仪的介绍、操作及性能指标，硬件工程师必须学会的测量器件之一。Definitions and conditionsSpecifications describe the performance of parameters covered by the productwarranty and apply to the full temperature of 0 to 55C, unless otherwisenotedGet more Information95th percentile values indicate the breadth of the population (approx. 2 o) of perfor-This EXA signalanalyzer datamance tolerances expected to be met in 95 percent of the cases with a 95 percentsheet is a summary of theconfidence, for any ambient temperature in the range of 20 to 30C. In addition tothe statistical observations of a sample of instruments, these values include thespecifications and conditionseffects of the uncertainties of external calibration references these values are notfor N9010A EXA and N9010AEPwarranted. These values are updated occasionally if a significant change in theExpress EXA signal analyzers.statistically observed behavior of production instruments is observedwhich are available in the EXASignalAnalyzer SpecificationTypical describes additional product performance information that is not covered byGuide(N9010-90025)the product warranty It is performance beyond specifications that 80 percent of theunits exhibit with a 95 percent confidence level over the temperature range 20 toFor ordering informationkrefer30C. Typical performance does not include measurement uncertaintyto the EXA Signal AnalyzerConfiguration GuideNominal values indicate expected performance, or describe product performance59896531Nthat is useful in the application of the product, but are not covered by the productwarrantyThe analyzer will meet its specifications whenIt is within its calibration cycleUnder auto couple control, except when Auto Sweep Time rules= AccySignal frequencies 10 MHZ, with DC coupling appliedThe analyzer has been stored at an ambient temperature within the allowedoperating range for at least two hours before being turned on; if it had previouslybeen stored at a temperature range inside the allowed storage range, but outsidethe allowed operating rangeThe analyzer has been turned on at least 30 minutes with auto align set tonormal, or, if Auto align is set to off or partial, alignments must have been runrecently enough to prevent an Alert message; if the Alert condition is changedfrom Time and Temperature to one of the disabled duration choices, the analyzermay fail to meet specifications without informing the userFor the complete specifications guide, visitwww.agilent.com/find/exaspecifications1. For earlier instruments/Serial number prefix MY/SG/US5052), the full temperature rangesfrom5t50°CFrequency and Time specificationsFrequency rangeDC coupledAC coupledOption 50310 Hz to 3.6 Gh10 MHz to 3. 6 GHzOption 50710 Hz to 7 GH10 MHz to 7 GHzOption 51310 Hz to 13.6 GHz10 MHz to 13.6 ghzOption 52610 Hz to 26.5 GH10 MHz to 26.5 GhzOption 53210 Hz to 32 gHzNAOption 54410 Hz to 44 gHzNABandLO multiple(N)10 Hz to 3. 6 GHz3.5to7.0GH3.5to8.4GH28.4 to 13.6 GHz3135to17.1GH17 to 26.5 GHz5426.4 to 34.5 ghz344t044GHzFrequency referenceAccuracy+l time since last adjustment x aging rate)+ temperature stability t calibrationaccuracyAging rateOption pFrStandardy±1×106/year±15X107/2 yearsTemperature stabilityOption PFrStandard20to30°c±15×108±2×106Full temperature range±5x1±2×10Achievable initial calibration accuracyOption PFrStandard±4x108±1410Example trequency reterence accuracy=±(1×107+5×103+4×10-)(with Option PFR1 year after last adjustment±19x10Residual fmOption pFr
- 2021-05-06下载
- 积分：1
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Linux Shell 脚本攻略 中文 第三版和源码
Linux Shell 脚本攻略 中文高清第三版目录和源码，好好学习，天天向上
- 2020-06-29下载
- 积分：1
